Major IPO stocks could gain entry into the Russell indexes just a few days after going public.

Investor Gary Black thinks SpaceX's IPO could benefit investors with faster listing on Nasdaq 100 and S&P 500 indices.

Wall Street anticipates SpaceX's IPO, but recent data shows many large debuts have lagged the S&P 500. Investors buying at IPO prices have seen lower returns than those in the S&P…